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放射性炭素年代測定法
radiocarbon dating; carbon-14 datingnoun
で
location, means, or scope markergrammar
遺跡
ruins; archaeological remains; relicsnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
年代
period; era; decade; date; age group; generation; age rangenoun
を
object markergrammar
調べ
examine; look up; investigate; check-> 調べるichidan verb
た。
past tense or completed actiongrammar